▎ 摘　　要

NOVELTY - The utility model claims a double-layer tank for graphene coating spraying device, comprising a paint tank, a pressurizing device and a spray gun, a paint box cavity into mixing cavity, first-stage filter chamber, second stage filter chamber, a stirring chamber connection port, stirring cavity is connected with the first level filter chamber, the first level filter chamber is connected with the secondary filter cavity, the mixing cavity is provided with a stirrer; the first level filter chamber is provided with a primary filter core, a primary filtering cavity is connected to ultrasonic base; the secondary filter cavity is provided with a secondary filter core, secondary filtering chamber through the first conveying pipe connected to the pressurizing device. pressurizing device through the second conveying pipe is connected to the spray gun. A double-layer storage tank provided by the utility model adopts graphite paint spraying device for repairing, which can make the graphene coating uniformly dispersed and free of impurities, the graphene coating itself has aberration, cracking caused by coating, impurity and so on.